From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5752C24A076 for ; Sun, 7 Dec 2025 11:13:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765106025; cv=none; b=Vjge7gwO2e7dlK+xwHXuTydzyTVXjlbRoiZYKsSGDOKc33LIfAFBiUS+OmyGTe1L/BXN2G9ShlGoUe62cbkZurhY10vb8hAvGtsjcIFIhqbBbHibZtF8vCkADvWiRwfEM0Ns5HCWNF604FCE+vsU63siOEr+h9D40wHd6d6IA6Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765106025; c=relaxed/simple; bh=c9Cm8Ph3jUia32YkR6bjlvtHis3HpiD/orJ19vuyVmo=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=OE5J8jkILpiIP0OAlFFVgwPh1JzRE5HefBR/Hvrn1cRrNCPkkQRkFL7kuubNjtkIOdtXRmbBnbzqjJFIQp0qmvl+hh0JtEcoCyEnpCnyG27N49R15PzWumSXB+fh6OPi8DdJ7uAPBPgUHFxxmGopSlvgM6uUfX8Z4JrherV2Vds= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=cHrZNJxG; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="cHrZNJxG" Received: by smtp.kernel.org (Postfix) with ESMTPS id D1031C19421 for ; Sun, 7 Dec 2025 11:13:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1765106024; bh=c9Cm8Ph3jUia32YkR6bjlvtHis3HpiD/orJ19vuyVmo=; h=From:To:Subject:Date:In-Reply-To:References:From; b=cHrZNJxGqP6Jk5vllVNXi8Hmq1cflWhzxfRZjXh6l6Q/5hW0xoenJVUVK/eNaxalE 65UK0s20fSnE85v1Gb1auIXYJKPKslQGykDzMrQfUCXZ1LxxC1v7qd3AzawgofBl7D 1NZyGHpWM9IlF3tXRRDGO7dj7hdHKRYQZOUu7TXreDHMrz90Xt1divzKpDKz24jENI vikXVbi+mtDhoBCk2LyIvlP7BgrpmR6Emr/a57bm3507ELRWNdSG1V5Z9nEpMiJE6M YgE50VdlEqMhrsydhfCbcLM9mEbFY/vjUez9s2HOhw9oSKVTqdw4CAZTbvTscC5lEM dFwdxGyleX4eQ== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id C37DFC41612; Sun, 7 Dec 2025 11:13:44 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-ext4@vger.kernel.org Subject: [Bug 220842] dmesg flooded with ext4 backtraces when underlying USB device chokes Date: Sun, 07 Dec 2025 11:13:44 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo fs_ext4@kernel-bugs.osdl.org X-Bugzilla-Product: File System X-Bugzilla-Component: ext4 X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: deweloper@wp.pl X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: fs_ext4@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-ext4@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D220842 --- Comment #3 from Deweloper (deweloper@wp.pl) --- This message and tons of call traces overflowing dmesg buffer make me think there is some software bug in ext4 fs driver: <2>[ 5451.308209] EXT4-fs (sdb1): This should not happen!! Data will be lost What should not happen? Some invalid internal state? Or an external event out of control of the software, like disappearing block device, what is normal/expected? In other words, is all of this noise just a way to say that a mounted devic= e is lost? --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=